Browsing by Author "Bloch, Heinz P."

Now showing items 1-12 of 12

    • Breaking The Cycle Of Pump Repairs 
      Bloch, Heinz P.; Lee, Buddy (Turbomachinery Laboratory, Texas A&M University, 2012)
    • Breaking The Cycle Of Pump Repairs 
      Bloch, Heinz P. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2014)
      Of the numerous process centrifugal pumps undergoing repair right this very minute, an estimated 90% have failed randomly before. Some have run just fine until the very first repair two or three years after startup, and ...
    • Centrifugal Pump Cooling And Lubricant Application - A "Best Technology" Update 
      Bloch, Heinz P. (Texas A&M University. Turbomachinery Laboratories, 2005)
      Process pumps experience widely different operating times to failure. U.S. refineries achieve pump mean-times-between-failure (MTBFs) ranging from less than three years to in excess of eight years. While the importance of ...
    • Dual Seal Integral Pumping Devices That Increase Pump Reliability And Safety 
      Bloch, Heinz P.; Carmody, Christopher J.; Roddis, Alan (Texas A&M University. Turbomachinery Laboratories, 2008)
    • Less Costly Turboequipment Uprates Through Optimized Coupling Selection 
      Bloch, Heinz P. (Texas A&M University. Gas Turbine Laboratories, 1975)
      Compressor and driver shafts often prove to be overstressed in equipment uprate situations. This paper shows how a change from conventional gear-type couplings to the more recent diaphragm coupling design can lower the ...
    • Lubrication Delivery Advances For Pumps And Motor Drivers 
      Bloch, Heinz P. (Turbomachinery Laboratories, Texas A&M Engineering Experiment Station, 2015)
      A ranking order is found in the Eschmann-Hasbargen-Weigand text “Ball and Roller Bearings” (ISBN 0-471-26283-8) for oil and grease-lubed bearings. The author re-assesses this ranking with input derived from the collective ...
    • Recent Experience With Large Liquid Injected Rotary Screw Process Gas Compressors. 
      Bloch, Heinz P.; Noack, Pierre W. (Texas A&M University. Turbomachinery Laboratories, 1991)
      Advances in manufacturing techniques and design enhancements for such components as shaft seals have made it possible for liquid flooded rotary screw compressors to achieve availability, reliability, and overall performance ...
    • Reliability Improvement In Mechanical Seals - Analysis Of Design Considerations 
      Bloch, Heinz P.; Schuebl, Wolfgang (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1985)
      The differences between mechanical and shaft seal devices intended for high reliability and seals which were designed without reliability as the foremost consideration are examined and explained. Highlighted are such ...
    • Selection Strategy For Mechanical Shaft Seals In Petrochemical Plants 
      Bloch, Heinz P. (Turbomachinery Laboratories, Department of Mechanical Engineering, Texas A&M University, 1984)
      Petrochemical plants are confronted with an increasing number of available mechanical seal designs. The user must choose from among inexpensive standard seals and exotic, high engineered seal models. We have seen seal costs ...
    • Storage Preservation Of Machinery. 
      Bloch, Heinz P. (Texas A&M University. Turbomachinery Laboratories, 1985)
      Storage preservation of machinery makes economic sense fur as yet uncommissioned as well as temporarily deactivated ("mothballed") machinery. Storage preservation herein is divided into three main elements: turbomachinery ...
    • Using Modified Acoustic Emission Techniques For Machinery Condition Surveillance 
      Bloch, Heinz P.; Finley, Robert W. (Texas A&M University. Gas Turbine Laboratories, 1978)
      Acoustic emission is the release of high frequency sound energy in a material under strain. It is the result of microscopic changes in material structure and is associated with deformation and defect growth. Until about ...
    • Vacuum Distillation Methods For Lube Oils Increase Turbomachinery Reliability. 
      Adams, Mark A.; Bloch, Heinz P. (Texas A&M University. Turbomachinery Laboratories, 1988)
      The lube oils in self-contained reservoirs for turbomachinery in hydrocarbon processing plants are subject to contamination and deterioration from airborne dust, component debris, system corrosion, heat, and water. Oil ...